Comparison

Sentence Monster vs Sentence101

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sentence Monster

This app helps language learners improve their writing skills by practicing vocabulary in context. It provides personalized sentence-writing exercises, feedback on accuracy, and targeted reviews for words that need more attention. The goal is to build active recall and confidence in using new words.

Highlights
  • Sentence-based vocabulary practice
  • Personalized review of mistakes
  • AI-generated sentence assignments
  • Writing feedback for accuracy
  • Progress and vocabulary insights
  • Support for multiple learning languages
Features
Read full description

Sentence Monster helps language learners turn vocabulary into sentences they can actually write. Knowing a word is not the same as being able to use it. Sentence Monster gives you short sentence-writing practice, checks your answers, and brings back the words you miss, forget, or still cannot use confidently. Practice with AI-picked sentences tailored to your learning history. Missed, weak, and fading words return through personalized review so you can build active recall instead of only recognizing words. Key features: - Sentence-based vocabulary practice - Personalized review from mistakes and weak words - AI-generated sentence assignments algorithm - Writing feedback for sentence accuracy - Progress and vocabulary insight - Practice across multiple learning languages Sentence Monster is built for learners who freeze when writing, even though they already know many words. Write the sentence, get feedback, and keep repeating the words that need more work. Supported learning languages: English, Korean, Japanese, Chinese, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Turkish, Indonesian, Vietnamese, and Russian. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sentence101

Features
Read full description

Know the words, but struggle to form a sentence? Using English takes more than recognizing vocabulary. You need practice turning the words you know into complete sentences of your own. Sentence101 helps you learn practical workplace English by building and typing sentences yourself. Focus on one sentence a day and make 100 essential English sentences truly yours. Move Beyond Memorizing Words Simply reading a sentence can make it feel more familiar than it really is. With Sentence101, you recall parts of a sentence, work through focused exercises, and finally type the entire sentence yourself. Repeated practice turns expressions you recognize into sentences you can actually use. English for Real Work Learn sentences for situations you regularly encounter at work, including email, meetings, reports, collaboration, and software development. Start with practical expressions you can use on the job, not just textbook examples. Focus on One Sentence a Day You do not have to memorize dozens of expressions at once. Recall and type one sentence throughout the day until it gradually becomes your own. Optional learning reminders help you revisit the day's sentence in short, manageable sessions. The 100-Sentence Challenge Learn one sentence each day and light up all 100 flames. Follow your streak and study log to see how far you have come. Key Features - Step-by-step exercises where you build and type sentences - Practical English for real workplace situations - Email, meeting, report, collaboration, and development categories - A focused one-sentence-a-day learning routine - Optional reminders for repeated practice - A 100-sentence challenge and daily streaks - A study log for reviewing completed sentences - Interface support for eight languages Move from knowing English words to using complete sentences. Make 100 English sentences yours with Sentence101.

Screenshots

Sentence Monster4 screens
Sentence1014 screens

Verdict

The call

The clearest difference is ads: Sentence Monster at none against Sentence101's shown. Sentence Monster also leads on iOS requirement (15.1 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sentence Monster ships an update every 3 weeks, Sentence101 monthly. Both last shipped on October 25, 2026.

Scorecard2 real differences · 7 level
Sentence Monster versus Sentence101: the parameters behind the verdict, then further details
ParameterSentence MonsterSentence101
PriceFreeFree
Rating1.5 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size35 MB6 MB
Age rating12+4+
DeveloperMINHYEONG YUjaesung Lee

In-app purchases

None

Sentence Monster

No in-app purchases

None

Sentence101

No in-app purchases

Questions

Is Sentence Monster free?
Sentence Monster is free to download, with no in-app purchases.
Is Sentence101 free?
Sentence101 is free to download, with no in-app purchases.
Do Sentence Monster or Sentence101 have ads?
Sentence101 shows ads; Sentence Monster does not.
Which is updated more often, Sentence Monster or Sentence101?
Sentence Monster ships an update every 3 weeks, and Sentence101 monthly. Most recently, Sentence Monster was updated on October 25, 2026 and Sentence101 on October 25, 2026.

Other comparisons